Run results for: Lodash cloneDeep vs structuredClone vs JSON.parse + JSON.stringify but with big data

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36 Edg/129.0.0.0

Browser: Chrome 129

Operating system: Windows

Device Platform: Desktop

Date tested: 27 days ago

Test name	Executions per second
Lodash cloneDeep	62328.9 Ops/sec
Native structuredClone	46758.0 Ops/sec
JSON.parse	59070.1 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var MyObject = {
  description: 'Creates a deep copy of source, which should be an object or an array.',
  myNumber: 123456789,
  myBoolean: true,
  jayson: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...',
    big: {
      description: 'Creates a deep copy of source, which should be an object or an array.',
      myNumber: 123456789,
      myBoolean: true,
      jayson: {
        stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
        parse: 'JSON.parse() method parses a JSON string...',
        big: {
          description: 'Creates a deep copy of source, which should be an object or an array.',
          myNumber: 123456789,
          myBoolean: true,
          jayson: {
            stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
            parse: 'JSON.parse() method parses a JSON string...',
            big: {
              description: 'Creates a deep copy of source, which should be an object or an array.',
              myNumber: 123456789,
              myBoolean: true,
              jayson: {
                stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
                parse: 'JSON.parse() method parses a JSON string...',
                big: {
                  description: 'Creates a deep copy of source, which should be an object or an array.',
                  myNumber: 123456789,
                  myBoolean: true,
                  jayson: {
                    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
                    parse: 'JSON.parse() method parses a JSON string...',
                    big: {
                      description: 'Creates a deep copy of source, which should be an object or an array.',
                      myNumber: 123456789,
                      myBoolean: true,
                      jayson: {
                        stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
                        parse: 'JSON.parse() method parses a JSON string...',
                        big: {
                          description: 'Creates a deep copy of source, which should be an object or an array.',
                          myNumber: 123456789,
                          myBoolean: true,
                          jayson: {
                            stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
                            parse: 'JSON.parse() method parses a JSON string...',
                            big: {
                              description: 'Creates a deep copy of source, which should be an object or an array.',
                              myNumber: 123456789,
                              myBoolean: true,
                              jayson: {
                                stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
                                parse: 'JSON.parse() method parses a JSON string...',
                                big: {
                                  description: 'Creates a deep copy of source, which should be an object or an array.',
                                  myNumber: 123456789,
                                  myBoolean: true,
                                  jayson: {
                                    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
                                    parse: 'JSON.parse() method parses a JSON string...',
                                    big: {
                                      description: 'Creates a deep copy of source, which should be an object or an array.',
                                      myNumber: 123456789,
                                      myBoolean: true,
                                      jayson: {
                                        stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
                                        parse: 'JSON.parse() method parses a JSON string...',
                                        big: {
                                          description: 'Creates a deep copy of source, which should be an object or an array.',
                                          myNumber: 123456789,
                                          myBoolean: true,
                                          jayson: {
                                            stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
                                            parse: 'JSON.parse() method parses a JSON string...',
                                            big: {
                                              description: 'Creates a deep copy of source, which should be an object or an array.',
                                              myNumber: 123456789,
                                              myBoolean: true,
                                              jayson: {
                                                stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
                                                parse: 'JSON.parse() method parses a JSON string...',
                                                big: {
                                                  description: 'Creates a deep copy of source, which should be an object or an array.',
                                                  myNumber: 123456789,
                                                  myBoolean: true,
                                                  jayson: {
                                                    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
                                                    parse: 'JSON.parse() method parses a JSON string...',
                                                    big: {
                                                      description: 'Creates a deep copy of source, which should be an object or an array.',
                                                      myNumber: 123456789,
                                                      myBoolean: true,
                                                      jayson: {
                                                        stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
                                                        parse: 'JSON.parse() method parses a JSON string...',
                                                        big: {
                                                          description: 'Creates a deep copy of source, which should be an object or an array.',
                                                          myNumber: 123456789,
                                                          myBoolean: true,
                                                          jayson: {
                                                            stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
                                                            parse: 'JSON.parse() method parses a JSON string...',
                                                            big: {
                                                              description: 'Creates a deep copy of source, which should be an object or an array.',
                                                              myNumber: 123456789,
                                                              myBoolean: true,
                                                              jayson: {
                                                                stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
                                                                parse: 'JSON.parse() method parses a JSON string...'
                                                              }
                                                            }
                                                          }
                                                        }
                                                      }
                                                    }
                                                  }
                                                }
                                              }
                                            }
                                          }
                                        }
                                      }
                                    }
                                  }
                                }
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
};

var myCopy = null;

Tests:

Lodash cloneDeep
myCopy = _.cloneDeep(MyObject);
Native structuredClone
myCopy = structuredClone(MyObject);
JSON.parse
myCopy = JSON.parse(JSON.stringify(MyObject))

Run results for: Lodash cloneDeep vs structuredClone vs JSON.parse + JSON.stringify but with big data

https://developer.mozilla.org/en-US/docs/Web/API/structuredClone

Lodash cloneDeep

Native structuredClone

JSON.parse